Apparatus and methods for handling a message difference prior to decoding based on apriori knowledge of modified codeword transmission

摘要

A method and apparatus for handling a difference between a first and second message prior to decoding is disclosed. The signaling scenario illustrated by FIG. 1 and using the codeword properties defined herein, the various embodiments may combine multiple messages under the hypothesis that the value of a message portion corresponding to any subsequent observed transmission is different.;Accordingly, a first set of observations (LLR's) (601) may be compared with a second or subsequent set of observations (603), and if the observations are found sufficiently similar, may be further compared in the context of a hypothesized difference (607) in constituent message information words. Once any difference in information words is identified, the second or subsequent set of observations may be combined (611) with the first set of observations after suitable arithmetic processing, and prior to further decoding.